Allow dry runs for benchmarks where reports are generated but not sent to the dashboard

xtask/src/bench/dashboard.rs

@@ -11,61 +11,30 @@ use super::client::Client;
 use super::env_info;
 use super::workload::Workload;
 
-pub async fn cancel_on_ctrl_c(
-    invocation_uuid: Uuid,
-    dashboard_client: Client,
-    abort_handle: AbortHandle,
-) {
-    tracing::info!("press Ctrl-C to cancel the invocation");
-    match ctrl_c().await {
-        Ok(()) => {
-            tracing::info!(%invocation_uuid, "received Ctrl-C, cancelling invocation");
-            mark_as_failed(dashboard_client, invocation_uuid, None).await;
-            abort_handle.abort();
-        }
-        Err(error) => tracing::warn!(
-            error = &error as &dyn std::error::Error,
-            "failed to listen to Ctrl-C signal, invocation won't be canceled on Ctrl-C"
-        ),
-    }
+#[derive(Debug, Clone)]
+pub enum DashboardClient {
+    Client(Client),
+    Dry,
 }
 
-pub async fn mark_as_failed(
-    dashboard_client: Client,
-    invocation_uuid: Uuid,
-    failure_reason: Option<String>,
-) {
-    let response = dashboard_client
-        .post("cancel-invocation")
-        .json(&json!({
-            "invocation_uuid": invocation_uuid,
-            "failure_reason": failure_reason,
-        }))
-        .send()
-        .await;
-    let response = match response {
-        Ok(response) => response,
-        Err(response_error) => {
-            tracing::error!(error = &response_error as &dyn std::error::Error, %invocation_uuid, "could not mark invocation as failed");
-            return;
-        }
-    };
+impl DashboardClient {
+    pub fn new(dashboard_url: &str, api_key: Option<&str>) -> anyhow::Result<Self> {
+        let dashboard_client = Client::new(
+            Some(format!("{}/api/v1", dashboard_url)),
+            api_key,
+            Some(std::time::Duration::from_secs(60)),
+        )?;
 
-    if !response.status().is_success() {
-        tracing::error!(
-            %invocation_uuid,
-            "could not mark invocation as failed: {}",
-            response.text().await.unwrap()
-        );
-        return;
-    }
-    tracing::warn!(%invocation_uuid, "marked invocation as failed or canceled");
+        Ok(Self::Client(dashboard_client))
     }
 
-pub async fn send_machine_info(
-    dashboard_client: &Client,
-    env: &env_info::Environment,
-) -> anyhow::Result<()> {
+    pub fn new_dry() -> Self {
+        Self::Dry
+    }
+
+    pub async fn send_machine_info(&self, env: &env_info::Environment) -> anyhow::Result<()> {
+        let Self::Client(dashboard_client) = self else { return Ok(()) };
+
         let response = dashboard_client
             .put("machine")
             .json(&json!({"hostname": env.hostname}))
@@ -83,13 +52,15 @@ pub async fn send_machine_info(
     }
 
     pub async fn create_invocation(
-    dashboard_client: &Client,
+        &self,
         build_info: build_info::BuildInfo,
         commit_message: &str,
         env: env_info::Environment,
         max_workloads: usize,
         reason: Option<&str>,
     ) -> anyhow::Result<Uuid> {
+        let Self::Client(dashboard_client) = self else { return Ok(Uuid::now_v7()) };
+
         let response = dashboard_client
             .put("invocation")
             .json(&json!({
@@ -119,10 +90,12 @@ pub async fn create_invocation(
     }
 
     pub async fn create_workload(
-    dashboard_client: &Client,
+        &self,
         invocation_uuid: Uuid,
         workload: &Workload,
     ) -> anyhow::Result<Uuid> {
+        let Self::Client(dashboard_client) = self else { return Ok(Uuid::now_v7()) };
+
         let response = dashboard_client
             .put("workload")
             .json(&json!({
@@ -144,10 +117,12 @@ pub async fn create_workload(
     }
 
     pub async fn create_run(
-    dashboard_client: Client,
+        &self,
         workload_uuid: Uuid,
         report: &BTreeMap<String, CallStats>,
     ) -> anyhow::Result<()> {
+        let Self::Client(dashboard_client) = self else { return Ok(()) };
+
         let response = dashboard_client
             .put("run")
             .json(&json!({
@@ -165,3 +140,50 @@ pub async fn create_run(
         }
         Ok(())
     }
+
+    pub async fn cancel_on_ctrl_c(self, invocation_uuid: Uuid, abort_handle: AbortHandle) {
+        tracing::info!("press Ctrl-C to cancel the invocation");
+        match ctrl_c().await {
+            Ok(()) => {
+                tracing::info!(%invocation_uuid, "received Ctrl-C, cancelling invocation");
+                self.mark_as_failed(invocation_uuid, None).await;
+                abort_handle.abort();
+            }
+            Err(error) => tracing::warn!(
+                error = &error as &dyn std::error::Error,
+                "failed to listen to Ctrl-C signal, invocation won't be canceled on Ctrl-C"
+            ),
+        }
+    }
+
+    pub async fn mark_as_failed(&self, invocation_uuid: Uuid, failure_reason: Option<String>) {
+        if let DashboardClient::Client(client) = self {
+            let response = client
+                .post("cancel-invocation")
+                .json(&json!({
+                    "invocation_uuid": invocation_uuid,
+                    "failure_reason": failure_reason,
+                }))
+                .send()
+                .await;
+            let response = match response {
+                Ok(response) => response,
+                Err(response_error) => {
+                    tracing::error!(error = &response_error as &dyn std::error::Error, %invocation_uuid, "could not mark invocation as failed");
+                    return;
+                }
+            };
+
+            if !response.status().is_success() {
+                tracing::error!(
+                    %invocation_uuid,
+                    "could not mark invocation as failed: {}",
+                    response.text().await.unwrap()
+                );
+                return;
+            }
+        }
+
+        tracing::warn!(%invocation_uuid, "marked invocation as failed or canceled");
+    }
+}

xtask/src/bench/mod.rs

@@ -50,6 +50,10 @@ pub struct BenchDeriveArgs {
     #[arg(long, default_value_t = default_dashboard_url())]
     dashboard_url: String,
 
+    /// Don't actually send results to the dashboard
+    #[arg(long)]
+    no_dashboard: bool,
+
     /// Directory to output reports.
     #[arg(long, default_value_t = default_report_folder())]
     report_folder: String,
@@ -103,11 +107,11 @@ pub fn run(args: BenchDeriveArgs) -> anyhow::Result<()> {
     let assets_client =
         Client::new(None, args.assets_key.as_deref(), Some(std::time::Duration::from_secs(3600)))?; // 1h
 
-    let dashboard_client = Client::new(
-        Some(format!("{}/api/v1", args.dashboard_url)),
-        args.api_key.as_deref(),
-        Some(std::time::Duration::from_secs(60)),
-    )?;
+    let dashboard_client = if args.no_dashboard {
+        dashboard::DashboardClient::new_dry()
+    } else {
+        dashboard::DashboardClient::new(&args.dashboard_url, args.api_key.as_deref())?
+    };
 
     // reporting uses its own client because keeping the stream open to wait for entries
     // blocks any other requests
@@ -127,12 +131,12 @@ pub fn run(args: BenchDeriveArgs) -> anyhow::Result<()> {
     // enter runtime
 
     rt.block_on(async {
-        dashboard::send_machine_info(&dashboard_client, &env).await?;
+        dashboard_client.send_machine_info(&env).await?;
 
         let commit_message = build_info.commit_msg.context("missing commit message")?.split('\n').next().unwrap();
         let max_workloads = args.workload_file.len();
         let reason: Option<&str> = args.reason.as_deref();
-        let invocation_uuid = dashboard::create_invocation(&dashboard_client, build_info, commit_message, env, max_workloads, reason).await?;
+        let invocation_uuid = dashboard_client.create_invocation( build_info, commit_message, env, max_workloads, reason).await?;
 
         tracing::info!(workload_count = args.workload_file.len(), "handling workload files");
 
@@ -167,7 +171,7 @@ pub fn run(args: BenchDeriveArgs) -> anyhow::Result<()> {
         let abort_handle = workload_runs.abort_handle();
         tokio::spawn({
             let dashboard_client = dashboard_client.clone();
-            dashboard::cancel_on_ctrl_c(invocation_uuid, dashboard_client, abort_handle)
+            dashboard_client.cancel_on_ctrl_c(invocation_uuid, abort_handle)
         });
 
         // wait for the end of the main task, handle result
@@ -178,7 +182,7 @@ pub fn run(args: BenchDeriveArgs) -> anyhow::Result<()> {
             }
             Ok(Err(error)) => {
                 tracing::error!(%invocation_uuid, error = %error, "invocation failed, attempting to report the failure to dashboard");
-                dashboard::mark_as_failed(dashboard_client, invocation_uuid, Some(error.to_string())).await;
+                dashboard_client.mark_as_failed(invocation_uuid, Some(error.to_string())).await;
                 tracing::warn!(%invocation_uuid, "invocation marked as failed following error");
                 Err(error)
             },
@@ -186,7 +190,7 @@ pub fn run(args: BenchDeriveArgs) -> anyhow::Result<()> {
                 match join_error.try_into_panic() {
                     Ok(panic) => {
                         tracing::error!("invocation panicked, attempting to report the failure to dashboard");
-                        dashboard::mark_as_failed(dashboard_client, invocation_uuid, Some("Panicked".into())).await;
+                        dashboard_client.mark_as_failed( invocation_uuid, Some("Panicked".into())).await;
                         std::panic::resume_unwind(panic)
                     }
                     Err(_) => {

xtask/src/bench/workload.rs

@@ -12,8 +12,9 @@ use uuid::Uuid;
 use super::assets::Asset;
 use super::client::Client;
 use super::command::SyncMode;
+use super::dashboard::DashboardClient;
 use super::BenchDeriveArgs;
-use crate::bench::{assets, dashboard, meili_process};
+use crate::bench::{assets, meili_process};
 
 #[derive(Deserialize)]
 pub struct Workload {
@@ -25,7 +26,7 @@ pub struct Workload {
 }
 
 async fn run_commands(
-    dashboard_client: &Client,
+    dashboard_client: &DashboardClient,
     logs_client: &Client,
     meili_client: &Client,
     workload_uuid: Uuid,
@@ -64,7 +65,7 @@ async fn run_commands(
 #[tracing::instrument(skip(assets_client, dashboard_client, logs_client, meili_client, workload, master_key, args), fields(workload = workload.name))]
 pub async fn execute(
     assets_client: &Client,
-    dashboard_client: &Client,
+    dashboard_client: &DashboardClient,
     logs_client: &Client,
     meili_client: &Client,
     invocation_uuid: Uuid,
@@ -74,8 +75,7 @@ pub async fn execute(
 ) -> anyhow::Result<()> {
     assets::fetch_assets(assets_client, &workload.assets, &args.asset_folder).await?;
 
-    let workload_uuid =
-        dashboard::create_workload(dashboard_client, invocation_uuid, &workload).await?;
+    let workload_uuid = dashboard_client.create_workload(invocation_uuid, &workload).await?;
 
     let mut tasks = Vec::new();
 
@@ -113,7 +113,7 @@ pub async fn execute(
 #[allow(clippy::too_many_arguments)] // not best code quality, but this is a benchmark runner
 #[tracing::instrument(skip(dashboard_client, logs_client, meili_client, workload, master_key, args), fields(workload = %workload.name))]
 async fn execute_run(
-    dashboard_client: &Client,
+    dashboard_client: &DashboardClient,
     logs_client: &Client,
     meili_client: &Client,
     workload_uuid: Uuid,
@@ -202,7 +202,7 @@ async fn start_report(
 }
 
 async fn stop_report(
-    dashboard_client: &Client,
+    dashboard_client: &DashboardClient,
     logs_client: &Client,
     workload_uuid: Uuid,
     filename: String,
@@ -232,7 +232,7 @@ async fn stop_report(
             .context("could not convert trace to report")?;
             let context = || format!("writing report to {filename}");
 
-            dashboard::create_run(dashboard_client, workload_uuid, &report).await?;
+            dashboard_client.create_run(workload_uuid, &report).await?;
 
             let mut output_file = std::io::BufWriter::new(
                 std::fs::File::options()